Not until all the fish died in the lake __________ how serious the pollution was.

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• 1Not only _____ great thoughts but also they express their thoughts in words which powerfully influence our minds and emotions.

  A.did great writers have

  B.great writers had

  C.great writers have

  D.do great writers have

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• 2---_______ one and a half months enough for the project to be finished? 　　---I am afraid not. The professor is ill and only after he recovers ________ go on with it.

  A.Is; he can

  B.Are; he can

  C.Is; can he

  D.Are; can he

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• 3 ________ you eat the correct food ________ be able to keep fit and stay healthy.

  A.Unless; will you

  B.Only if; you will

  C.Only if; will you

  D.Unless; you will

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• 4Zhang Hua is clever and works hard at his subjects. ________.

  A.So is Li Ming

  B.So does Li Ming

  C.It was the same with Li Ming

  D.So it is with Li Ming

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• 5These problems, ________, will seriously affect the growth of teenagers and even the nation's future.

  A.not if solved properly

  B.if solved properly

  C.if not solved properly

  D.not if properly solved

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• 6No sooner______ themselves in their seats in the hall than the speaker began his speech.

  A.they settled

  B.had they settled

  C.did they settle

  D.they had settled

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• 7 ---Did you see who the driver was? ----No, so quickly ______ that I didn't make out what his face was like。

  A.did the car speed by

  B.the car speed up

  C.does the car speed by

  D.the car speeds up

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• 8I've tried very hard to improve my English.But by no means ________ with my progress.

  A.the teacher is not satisfied

  B.is the teacher not satisfied

  C.the teacher is satisfied

  D.is the teacher satisfied

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• 9Generally speaking, if ______ strictly following the instructions, the electric bike is not as dangerous as reported.

  A.riding

  B.being ridden

  C.to be ridden

  D.ridden

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• 10 Only by increasing the number of doctors by 50 percent  ________ properly in this hospital.

  A.can be the patients treated

  B.can the patients be treated

  C.the patients can be treated

  D.treated can be the patients

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